Generally, ironing a wool suit will shorten the lifespan - however, on a low temperature with distilled water and a clean iron, it’s possible to do so without excessive damage. Go over the suit with a single pass, hang for 20 minutes, then do so again. This will allow the fabric to settle.
Generally it’s best to take your suit to a dry cleaners, who have specialist equipment to ensure the suit is properly treated - however, fusible bonding webs are available to fix small holes, nicks and tears in the garment - which we find far more effective than darning.
A dry cleaner will be most effective at clearing oil stains, but using vinegar, dishwashing soap and water can have great results. Mix 1 part white vinegar, 1 part dish soap and 6 parts water, brush it onto the suit and tap into the fabric with a clean brush. Wait a few minutes, then dab with a dry white towel, blot with a wet white towel and dry it off with another dry one. This will clean most surface stains.
Most wool suits are dry clean only, and we’d recommend always following these instructions. A wool suit should look its best for any occasion and a dry cleaning always brings good results.
Most modern suits use Worsted wool - a finer, sleeker and smoother fabric than traditional tweed suits. This is why a high end wool suit often looks smoother than typical wool fabrics.